From: Warren Oates on 30 Jun 2010 07:42 In article <tom_stiller-9428EC.07080030062010(a)news.individual.net>, Tom Stiller <tom_stiller(a)yahoo.com> wrote: > PNG is OK but why would one store X-ray images in a lossy image format > like JPG? What, you want to edit your X-rays? "Oh, see, now I _don't_ have pneumonia." -- Very old woody beets will never cook tender. -- Fannie Farmer
From: Fred Moore on 30 Jun 2010 11:07 In article <4c2b2d96$0$10428$c3e8da3(a)news.astraweb.com>, Warren Oates <warren.oates(a)gmail.com> wrote: > In article <tom_stiller-9428EC.07080030062010(a)news.individual.net>, > Tom Stiller <tom_stiller(a)yahoo.com> wrote: > > > PNG is OK but why would one store X-ray images in a lossy image format > > like JPG? > > What, you want to edit your X-rays? "Oh, see, now I _don't_ have > pneumonia." No, actually it's to keep you from taking the images to another doctor and having him do the surgery (my speculation). I had some x-rays of my lower back taken. The facility was happy to give me a free CD with them on it. However, they were _much_ lower rez than the ones the doctor showed me at the office. Both he and I have hi-rez screens, so it wasn't that. I was told the software from the x-ray machine only spits out copies at a lower rez. BTW & FWIW, my x-rays were in DICOM, rather than DCM, format. They came on an ISO-9660 disk with Doze-only executables. However, there is a free Mac app, OsiriX, which will display and export the films. BUT, it can't give you any better resolution than the clinic gave you.
From: nospam on 30 Jun 2010 12:45 In article <fmoore-2ABE23.11075930062010(a)news.eternal-september.org>, Fred Moore <fmoore(a)gcfn.org> wrote: > No, actually it's to keep you from taking the images to another doctor > and having him do the surgery (my speculation). they're *required* to give them to you or have them sent directly to another doctor, along with your medical records, if you request it. > I had some x-rays of my > lower back taken. The facility was happy to give me a free CD with them > on it. However, they were _much_ lower rez than the ones the doctor > showed me at the office. Both he and I have hi-rez screens, so it wasn't > that. I was told the software from the x-ray machine only spits out > copies at a lower rez. sounds like bullshit. > BTW & FWIW, my x-rays were in DICOM, rather than DCM, format. They came > on an ISO-9660 disk with Doze-only executables. However, there is a free > Mac app, OsiriX, which will display and export the films. BUT, it can't > give you any better resolution than the clinic gave you. medical x-rays will be dicom (i've never seen them not).
From: isw on 30 Jun 2010 13:15 In article <tom_stiller-9428EC.07080030062010(a)news.individual.net>, Tom Stiller <tom_stiller(a)yahoo.com> wrote: > In article <20100630001001441-jasonsavlov(a)mecom>, > Jason S <jasonsavlov(a)me.com> wrote: > > > On 2010-06-28 23:00:26 -0400, Mel Comisarow said: > > > > > I had a bunch of x-rays done for my cat and the veterinarian returned a > > > cd containing a bunch of files with a .dll suffix and a file with an > > > .exe suffix, which presumably is a Windows program. The Finder says > > > each .dll file is a "Windows dynamic link library". How can I read these > > > .dll files on my Mac? Thanks. > > > > Why does this sound way more complicated than it probably is? And why > > on earth does your veterinarian put the images in a windows executable > > file? Why not just put the images in folders as PNG or JPG or something > > easily accessible? > > > PNG is OK but why would one store X-ray images in a lossy image format > like JPG? Because if you do it right, you save considerable space, and it's not lossy enough to matter? Isaac
From: Tom Stiller on 30 Jun 2010 14:52
In article <isw-3F6597.10150030062010@[216.168.3.50]>, isw <isw(a)witzend.com> wrote: > In article <tom_stiller-9428EC.07080030062010(a)news.individual.net>, > Tom Stiller <tom_stiller(a)yahoo.com> wrote: > > > In article <20100630001001441-jasonsavlov(a)mecom>, > > Jason S <jasonsavlov(a)me.com> wrote: > > > > > On 2010-06-28 23:00:26 -0400, Mel Comisarow said: > > > > > > > I had a bunch of x-rays done for my cat and the veterinarian returned a > > > > cd containing a bunch of files with a .dll suffix and a file with an > > > > .exe suffix, which presumably is a Windows program. The Finder says > > > > each .dll file is a "Windows dynamic link library". How can I read these > > > > .dll files on my Mac? Thanks. > > > > > > Why does this sound way more complicated than it probably is? And why > > > on earth does your veterinarian put the images in a windows executable > > > file? Why not just put the images in folders as PNG or JPG or something > > > easily accessible? > > > > > PNG is OK but why would one store X-ray images in a lossy image format > > like JPG? > > Because if you do it right, you save considerable space, and it's not > lossy enough to matter? > I don't know, but I suspect the purpose for wanting the X-ray images was to show them to someone and I doubt that either of us knows enough to determine which details of the image matters and which details don't. -- Tom Stiller PGP fingerprint = 5108 DDB2 9761 EDE5 E7E3 7BDA 71ED 6496 99C0 C7CF |